公开(公告)号：US20180272709A1

公开(公告)日：2018-09-27

申请号：US15894996

申请日：2018-02-13

申请人： Junichi IWATA ,  Takahiro YOSHIDA ,  Yukio OTOME ,  Tomoaki MURAKAMI

发明人： Junichi IWATA ,  Takahiro YOSHIDA ,  Yukio OTOME ,  Tomoaki MURAKAMI

IPC分类号： B41J2/14 ,  B41J2/045 ,  B41J2/15

摘要： A liquid discharge head includes a nozzle to discharge a liquid, an individual chamber communicating with the nozzle, a supply channel communicating with the individual chamber to supply the liquid to the individual chamber, and a discharge channel communicating with the individual chamber to discharge the liquid in the individual chamber. A fluid resistance of the supply channel is greater than a fluid resistance of the discharge channel.

公开(公告)号：US20180272740A1

公开(公告)日：2018-09-27

申请号：US15920945

申请日：2018-03-14

申请人： Yukio OTOME ,  Takahiro YOSHIDA ,  Takayuki NAKAI ,  Ryuji YOSHIDA ,  Junichi IWATA

发明人： Yukio OTOME ,  Takahiro YOSHIDA ,  Takayuki NAKAI ,  Ryuji YOSHIDA ,  Junichi IWATA

IPC分类号： B41J2/18

CPC分类号： B41J2/18 ,  B41J2/195

摘要： A liquid circulating apparatus includes a circulation route configured to circulate liquid through a liquid ejecting head, the circulation route including: a supply-side tank leading to a supply port of the liquid ejecting head; and a discharge-side tank leading to a discharge port of the liquid ejecting head, wherein the liquid is circulated by setting pressure in the supply-side tank higher than pressure in the discharge-side tank, and a sum of the pressure in the supply-side tank and the pressure in the discharge-side tank is set smaller when initial filling for filling the circulation route with the liquid is performed than when the liquid is circulated.

公开(公告)号：US20180194135A1

公开(公告)日：2018-07-12

申请号：US15844831

申请日：2017-12-18

申请人： Masami IWAMA ,  Yukio OTOME ,  Takahiro YOSHIDA ,  Takakazu KIHIRA ,  Takayuki NAKAI ,  Shiomi ANDOU ,  Isamu SUZUKI ,  Ryuji YOSHIDA ,  Kanshi ABE ,  Junichi IWATA ,  Katsuya ISHll ,  Toshimichi ODAKA

发明人： Masami IWAMA ,  Yukio OTOME ,  Takahiro YOSHIDA ,  Takakazu KIHIRA ,  Takayuki NAKAI ,  Shiomi ANDOU ,  Isamu SUZUKI ,  Ryuji YOSHIDA ,  Kanshi ABE ,  Junichi IWATA ,  Katsuya ISHll ,  Toshimichi ODAKA

IPC分类号： B41J2/14 ,  B41J2/17 ,  B41J2/175

CPC分类号： B41J2/14233 ,  B41J2/14274 ,  B41J2/1721 ,  B41J2/175 ,  B41J2/17503 ,  B41J2002/14258 ,  B41J2002/14403 ,  B41J2002/14467 ,  B41J2202/12

摘要： A liquid discharge head includes a plurality of nozzles from which liquid is discharged, a plurality of individual-liquid-chambers communicating with the plurality of nozzles, respectively, a plurality of individual-drainage-channels communicating with the plurality of individual-liquid-chambers, respectively, a drainage-side common-liquid-chamber communicating with each of the plurality of individual-drainage-channels, a filter having filter holes and disposed between the plurality of individual-drainage-channels and the drainage-side common-liquid-chamber, and an intermediate-drainage-channel disposed between the filter and the plurality of individual-drainage-channels. The intermediate-drainage-channel faces the filter and communicates with two or more of the plurality of individual-drainage-channels. A cross-sectional area of the intermediate-drainage-channel is greater than a cross-sectional area of each of the plurality of individual-drainage-channels communicating with the intermediate-drainage-channel in a direction perpendicular to a direction of liquid flow.

公开(公告)号：US20240227396A9

公开(公告)日：2024-07-11

申请号：US18381655

申请日：2023-10-19

申请人： Yukio OTOME ,  Tomoaki MURAKAMI

发明人： Yukio OTOME ,  Tomoaki MURAKAMI

IPC分类号： B41J2/14

CPC分类号： B41J2/14233

摘要： A liquid discharge head includes: multiple nozzles; multiple individual chambers respectively communicating with the multiple nozzles; a common chamber communicating with each of the multiple individual chambers; multiple fluid restrictors between each of the multiple individual chambers and the common chamber; and multiple actuators driven to cause a liquid in the multiple individual chambers to be discharged from the multiple nozzles, a meniscus formed at each of the multiple nozzles has a natural period of vibration different from each of: a resonant period of the common chamber; half of the resonant period of the common chamber; and a quarter of the resonant period of the common chamber.

公开(公告)号：US20240131842A1

公开(公告)日：2024-04-25

申请号：US18381655

申请日：2023-10-18

申请人： Yukio OTOME ,  Tomoaki MURAKAMI

发明人： Yukio OTOME ,  Tomoaki MURAKAMI

IPC分类号： B41J2/14

CPC分类号： B41J2/14233

摘要： A liquid discharge head includes: multiple nozzles; multiple individual chambers respectively communicating with the multiple nozzles; a common chamber communicating with each of the multiple individual chambers; multiple fluid restrictors between each of the multiple individual chambers and the common chamber; and multiple actuators driven to cause a liquid in the multiple individual chambers to be discharged from the multiple nozzles, a meniscus formed at each of the multiple nozzles has a natural period of vibration different from each of: a resonant period of the common chamber; half of the resonant period of the common chamber; and a quarter of the resonant period of the common chamber.

公开(公告)号：US20170157924A1

公开(公告)日：2017-06-08

申请号：US15358486

申请日：2016-11-22

申请人： Yukio OTOME ,  Takahiro YOSHIDA ,  Takayuki NAKAI ,  Shiomi ANDOU ,  Kanshi ABE ,  Kenshiroh MUNETOMO ,  Toshimichi ODAKA

发明人： Yukio OTOME ,  Takahiro YOSHIDA ,  Takayuki NAKAI ,  Shiomi ANDOU ,  Kanshi ABE ,  Kenshiroh MUNETOMO ,  Toshimichi ODAKA

IPC分类号： B41J2/14

CPC分类号： B41J2/1433 ,  B41J2/14233 ,  B41J2/14274 ,  B41J2002/14306 ,  B41J2002/14419 ,  B41J2202/11

摘要： A liquid discharge head includes a channel plate. The channel plate includes a fluid restrictor, a channel, a first plate member, and a second plate member. The channel is disposed on at least one of an upstream side and a downstream side of the fluid restrictor in a direction of flow of liquid. The channel has a greater width than a width of the fluid restrictor in a direction perpendicular to the direction of flow of liquid in an in-plane direction. The first plate member has a through hole including at least one broad portion and a narrow portion. The narrow portion is the fluid restrictor. The second plate member includes at least one through hole constituting part of the channel with the broad portion. The through hole is disposed opposite an end of the narrow portion at which the narrow portion is connected to the broad portion.

公开(公告)号：US20160170329A1

公开(公告)日：2016-06-16

申请号：US14965313

申请日：2015-12-10

申请人： Hideki KIMURA ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Junichi TERAI ,  Hiroshi KIKUCHI ,  Yukio OTOME ,  Hiroaki OKAMOTO

发明人： Hideki KIMURA ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Junichi TERAI ,  Hiroshi KIKUCHI ,  Yukio OTOME ,  Hiroaki OKAMOTO

IPC分类号： G03G15/08

CPC分类号： G03G15/0898 ,  G03G15/0881 ,  G03G15/0942 ,  G03G2215/0648

摘要： A developing device includes a developer bearer, a developer regulator, a casing including an opposing face to oppose the developer bearer upstream from a developing range in a direction of rotation of the developer bearer, and first, second, and third seals. The first seal includes a first end secured to the casing and a second end to contact a latent image bearer upstream from the developing range in a direction of rotation of the latent image bearer. The second seal includes a first end secured to the opposing face of the casing, and a second end to contact the first seal upstream from the developing range. The third seal includes a first end secured to the opposing face of the casing, and a second end to contact developer on the developer bearer between the developer regulator and the developing range in the direction of rotation of the developer bearer.

摘要翻译： 显影装置包括显影剂载体，显影剂调节器，包括相对面的壳体，所述相对面与显影剂承载体的旋转方向上的显影范围上游的显影剂载体相对，以及第一，第二和第三密封件。 第一密封件包括固定到壳体的第一端和在潜像承载体的旋转方向上与显影范围上游的潜像载体接触的第二端。 第二密封件包括固定到壳体的相对面的第一端和与显影范围上游接触第一密封件的第二端。 第三密封件包括固定到壳体的相对面的第一端，以及与显影剂调节器和显影剂承载体的旋转方向上的显影范围之间的显影剂载体上的显影剂接触的第二端。

公开(公告)号：US20160202630A1

公开(公告)日：2016-07-14

申请号：US14982016

申请日：2015-12-29

申请人： Hiroaki OKAMOTO ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Yukio OTOME ,  Junichi TERAI ,  Hideki KIMURA ,  Hiroshi KIKUCHI

发明人： Hiroaki OKAMOTO ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Yukio OTOME ,  Junichi TERAI ,  Hideki KIMURA ,  Hiroshi KIKUCHI

IPC分类号： G03G15/09

CPC分类号： G03G15/0808 ,  G03G15/0806 ,  G03G2215/0648

摘要： A developing device to develop a latent image on a rotatable image bearer includes an upstream developing roller disposed opposite the image bearer at a first developing position, and a downstream developing roller disposed adjacent to and downstream from the upstream developing roller in a direction of rotation of the image bearer, disposed opposite the image bearer at a second developing position. Each of the upstream developing roller and the downstream developing roller has a most approachable surface that approaches closest to the image bearer and a most withdrawn surface that withdraws farthest from the image bearer. In a state in which a reference surface point of the image bearer is disposed opposite the most approachable surface of the upstream developing roller at the first developing position, the reference surface point opposes the most withdrawn surface of the downstream developing roller at the second developing position.

摘要翻译： 用于在可旋转图像承载体上显影潜像的显影装置包括：在第一显影位置处与图像承载体相对设置的上游显影辊和沿着上游显影辊的旋转方向邻近和下游设置的下游显影辊 该图像承载件在第二显影位置处与图像承载件相对设置。 上游显影辊和下游显影辊中的每一个具有最靠近图像载体的最接近的表面，以及从图像载体最远退出的最抽出的表面。 在图像承载体的基准表面点与第一显影位置处的上游显影辊的最接近表面相对的状态下，参考表面点与第二显影位置处的下游显影辊的最大退缩表面相对 。

公开(公告)号：US20160070208A1

公开(公告)日：2016-03-10

申请号：US14844598

申请日：2015-09-03

申请人： Hiroshi KIKUCHI ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Junichi TERAI ,  Hideki KIMURA ,  Yukio OTOME ,  Hiroaki OKAMOTO ,  Kazunori SUZUKI

发明人： Hiroshi KIKUCHI ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Junichi TERAI ,  Hideki KIMURA ,  Yukio OTOME ,  Hiroaki OKAMOTO ,  Kazunori SUZUKI

IPC分类号： G03G15/08

CPC分类号： G03G15/0891 ,  G03G15/0889 ,  G03G15/0896 ,  G03G2215/0827

摘要： A developing unit includes a developer bearer to bear developer on a surface thereof, first and second developer conveyors each having a spiral blade mounted on a rotary shaft thereof parallel to a rotary axis of the developer bearer to convey developer in opposite directions to each other. A developer drain hole is provided at a given height in a side wall of a second developer conveyance channel to face a communication opening across the second developer conveyor. The first developer conveyor rotates in a direction with its spiral blade rising between the rotary shaft of the first developer conveyor and the communication opening. Rotational phases of the first developer conveyor and the second developer conveyor are fixed and synchronized with each other to weaken momentum of developer flow generated by the first developer conveyor toward the developer drain hole via the second developer conveyor.

摘要翻译： 显影单元包括：显影剂载体，用于在其表面上承载显影剂;第一和第二显影剂输送机，每个具有安装在其旋转轴上的螺旋叶片，平行于显影剂承载件的旋转轴线，以将显影剂彼此相反的方向输送。 显影剂排出孔设置在第二显影剂输送通道的侧壁中的给定高度处，以面对穿过第二显影剂输送器的连通开口。 第一显影剂输送机沿其螺旋叶片在第一显影剂输送机的旋转轴和通信开口之间上升的方向旋转。 第一显影剂输送机和第二显影剂输送机的旋转相位彼此固定并同步，以削弱由第一显影剂输送器通过第二显影剂输送机朝显影剂排出孔产生的显影剂流的动量。

公开(公告)号：US20220126575A1

公开(公告)日：2022-04-28

申请号：US17509101

申请日：2021-10-25

申请人： Yukio OTOME ,  Takayuki NAKAI

发明人： Yukio OTOME ,  Takayuki NAKAI

IPC分类号： B41J2/14 ,  B41J2/175

摘要： A liquid discharge head includes a nozzle to discharge a liquid, a pressure generation chamber facing the nozzle, a common liquid chamber to supply the liquid to the pressure generation chamber, a fluid restrictor communicating with the pressure generation chamber, and a guide channel communicating with the fluid restrictor and the common liquid chamber. The guide channel includes a first adjacent portion communicating with the fluid restrictor. The pressure generation chamber has a first resonance period, and the guide channel has a second resonance period different from the first resonance period.